If you can just play music CDs, you can use DVDs for the convenience of buying discs in the market, but the problem may be that you need to equip a monitor. As for ceiling speakers, you can buy them in large supermarkets, decoration stores or online.
The basic requirements are power amplifier + microphone stand + ceiling speaker + player (CD, DVD, VCD). The other configuration of power amplifier depends on the size and proportion of the place. The power of the power amplifier is about 5W per square meter.